Wierd lucky block thing frozen on my menu screen

I have a Samsung Galaxy S8 that I play Minecraft PE on and for some reason I can't play my game because there is a lucky block box of some sort frozen on my Minecraft menu screen. I have reported this exact issue before, but was told that something had been modified and that i should back up my worlds and reinstall Minecraft PE. I can not back up my worlds or anything else Minecraft related because I can not get into the game die to it being frozen. Please fix this so I can play again. I paid $6.99 for Minecraft PE and would love to be able to play it.